Chris Webber had a 51/26 game. And you can get game logs that go back to 1986-87 on basketball-reference.com, as opposed to the ones you were looking at on basketballreference.com, which only go back to 91-92.

I think it was his birthday and the Clippers hosted the Lakers. Shaq wanted A LOT of tickets for his friends an family but the clippers only gave him a handful so he decided to humiliate them and gave quite a performance.